/*
 *  Copyright 1999-2019 Seata.io Group.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package io.seata.integration.tx.api.json;

import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;

import io.seata.common.DefaultValues;
import io.seata.common.loader.EnhancedServiceLoader;
import io.seata.common.util.CollectionUtils;

/**
 * @author zouwei
 */
public class JsonParserFactory {

    private static final Map<String, JsonParserWrap> JSON_PARSER_INSTANCES = new ConcurrentHashMap<>();

    public static JsonParserWrap getInstance(String jsonParserName) {
        final String name =
            Optional.ofNullable(jsonParserName).orElse(DefaultValues.DEFAULT_TCC_BUSINESS_ACTION_CONTEXT_JSON_PARSER);
        return CollectionUtils.computeIfAbsent(JSON_PARSER_INSTANCES, name,
            key -> new JsonParserWrap(EnhancedServiceLoader.load(JsonParser.class, name)));
    }
}
